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Author Topic: Conchoidal fracture (bruise) on Greta Vase  (Read 10825 times)

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Offline paradisetrader

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Conchoidal fracture (bruise) on Greta Vase
« Reply #10 on: November 08, 2005, 09:41:15 AM »
Cathy thats not a favour at all
Height is 20cm, width is 30cm
Reeds in frosted section =5
Pete

Offline paradisetrader

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Conchoidal fracture (bruise) on Greta Vase
« Reply #11 on: November 16, 2005, 03:30:38 PM »
New pic with the aid of a magnifying glass
Not very good but the best I can do ...
It measures about 1cm across

and Im now thinking its a "bruise" but still not sure.......
Pete

Connie

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Conchoidal fracture (bruise) on Greta Vase
« Reply #12 on: November 17, 2005, 02:48:30 AM »
FWIW  - It looks like a bruise to me.

Offline Frank

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Conchoidal fracture (bruise) on Greta Vase
« Reply #13 on: November 17, 2005, 06:05:12 AM »
Seconded

Offline Ivo

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Conchoidal fracture (bruise) on Greta Vase
« Reply #14 on: November 17, 2005, 08:06:41 AM »
"Three independent forensic experts have confirmed"....

Offline paradisetrader

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Conchoidal fracture (bruise) on Greta Vase
« Reply #15 on: November 17, 2005, 10:59:16 AM »
Thank yopu all
The striations can only be seen under magnification - otherwise it just looks frosty - which is what threw me off.
It seems odd that a knock can do this without cracking the surface. Just another of the many mysteries of glass !
Pete

Offline Frank

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Conchoidal fracture (bruise) on Greta Vase
« Reply #16 on: November 17, 2005, 07:19:55 PM »
Not really, the ripples are a shock wave.

Offline KevinH

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Conchoidal fracture (bruise) on Greta Vase
« Reply #17 on: November 17, 2005, 08:44:09 PM »
... and "sub-surface bruises" are often seen in the sides of paperweights.
KevinH

Offline aa

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Conchoidal fracture (bruise) on Greta Vase
« Reply #18 on: November 18, 2005, 06:27:35 PM »
I believe the correct term is conchoidal fracture :D
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Offline pamela

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Conchoidal fracture (bruise) on Greta Vase
« Reply #19 on: November 18, 2005, 06:39:37 PM »
aa: great post - I LOVE languages and this is reading it square:
conch - Muschel (the most expensive pearls by the way)
bruise - break: Bruch
conchoidal - muschelig
everyone understands German this way - mother of pearl breaks
'muschelig'
Pamela
Die Erfahrung lehrt, dass, wer auf irgendeinem Gebiet zu sammeln anfängt, eine Wandlung in seiner Seele anheben spürt. Er wird ein freudiger Mensch, den eine tiefere Teilnahme erfüllt, und ein offeneres Verständnis für die Dinge dieser Welt bewegt seine Seele.
Experience teaches that anyone who begins to collect in any field can feel a change in his soul. He becomes a joyful man filled with a deeper empathy, and a more open understanding moves his soul.
Alfred Lichtwark (1852-1914)

 

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